Improvement in hydrants



S'. MGBLROY.

' HYDRANI';

Patented Oct. 14. 186.2.

w .www

UNITED STATES PATENT 0EEIcE.

SAMUEL M0ELEoY,1oE BROOKLYN. ,NEW Yoan..

' iMPRovi-:MENT lN- HYDRANTS.

Specification forming part of Letters Patent N0. 36.663,dntedOctobcr`r14v, 156:2.- I'

To 'all whom may concern.-

Beit known thatl, SAMUEL vliIoELRoY,civ'il. engineer,'of the city ofBrooklym-State of New.

York,have invented anew and Improved Fire, Hydrant, of which thefollowing is' a full and exact description.

The nature of myinvention consists in thel arrangement and applicationof a lire-hydrant of improvedform and construction adapted to any formof head,which has a base chambered to take an improved valve-motionvoperated externally'and a valve-seat hub, andwhich gives a free ventand delivery to the water in its full capacity of opening without theob-v struction,friction,and counter'currents caused .by the arrangementof lire-hydrants vin com'- mon use,having other ad van-tages insimplicity ofv construction'.

Tovenable others skilled in the art to make and use 'my invention, lwill proceed tov describe its construction and operation, havingreference to the annexed drawings, marked Figures 1, 2, and 3. A

. The hy'drantis cast in two principal partsviz., the verticall tube Aand the valve-seat hub B, Figs. l-and 2, in which thcworkiug and movableparts are' attached to and' connectcdwith the vertical tube A', whichhas in addition to any formof ush or stand-pipe head that maybe desired,andis not included inthis description, a circular valve-chamber,

A,anv external valve 'fhmotion andfrod, E E D," a stufngbox, A, aninternal valve with it's 'working parts C C C2 C, and a joint-face totake the valve-seathub B, which is -bolted to 'the verticaltube A' with'aface-joint, and car-u ries the valve-seat B', and a hub to take thehydrant-pipe dire'ct. The 'lower part, A', of

the hydrant-tube A, which may-be carried to friction, landcounter-currents of the hydrant-*z tube in commonu use. L'Ihis circularvalveehamber also frees 'by its form the valve-seat -from anylodgmentofgravelor other -foreignsubstances, and permits the' 'location of theautomaticivent A", at a point below,v the valve-.

seat, insuring-'a morejcomplete anddesirable drainage `when th'ehydrantis-not inusethan is nowobtained'wit-h thefcommon form of hy-j' .drant.

In Fig. 3 the hydrant-tubeis' shown in connection with a'iush'hea'dadapted toeither al full-throat nozzle,0 or the ordinary tivo and 'ahalf inch nozzle, at'will; and itv mayv also be readily terminatedby astand-pipe' head adapt edto either size-of nozzle.

The valve C (shown in section in Figil and lin half-front elevation -inFig. 2) is lnadecf" cast.iron, b'rass,or any other suitable material,

lwithja chamber properly constructed to take Vleather or .other suitablepacking, C?, which lmakesa joint against thevalve-seat' B'.

The valve is'operated by a screw .cut on thevalveshaltC, 'of brass ,orother'suitable material,which, takes intnavalve trunk or.

cylinder', G2, ofv brass or other suitable material, asdra'\vn,'.'properly tapped to receive it,

which alsoproteetsit, and is secured to the "valve. In'itsopening andclosing motion the valve is supported and'gu-ided b y a projecting lugor griide,G*-,cast on each side ofthe chamv ber A'.

The valve-shaft (3,' is properly packed and' heldin placebythestufng-box `and gland A2, and is. o`perated by abevel gear-wheel,D,.-

lattach-ed to itsouter en'd,which is in turmoperated by abevelgear-wheel, E', attached to' a vertical or inclined rod, E, pfoperlysupported by twov o r more g`uide-bearings cast on the hydrant-tube,andv tted with suitable col- -lais, caps, bolts, and nuts, and adaptedat the g upper endto receive the ordinary form of hy drantf-vvreneh. Theproportions of this bevelgear may be changed at will, so as to modifythe 'power or speed on the vvalve-shaft C', as is desirable lin largehydrantfopenings yunder-' heavy'water-pressure. The relativeangleof ,thevalve-shalt withthe' hydrant-tube, .which is ninety .degrees as drawn,may be varied at."

v vill, and the screw may be c ut on the outerend of the valveishaft'C',so as to be operated by the bevel-wheel D as ,a nut,dis pensing .with

stuffing-box collaai'iirany casedesirable,

by which means the projecting trnnk C2 or the projecting internal screwis dispensed wth.

- The Valve-seat hub Bis cast withA a chamber 4or recess to take thevalve-seat B,of brass or l'other suitable material, properly keyed orleaded in', 'and faced to make a joint with the packing of Athe valve C.It is secured to the hydranttubc by L 'face-joint, being properly boltedto the same, and is cast with an expandc'd hub on its outer end to takethe spigot endof the llydxantpipc,which connects with the street-mein.This avoids the use of thc ordinary hydrant-bendwith its lead joints,

`lugs, straps, and other fixtures, and permit-s the hydrant-tube to bedetached' at any time' without thc use of lire, nsnnll y required tomelt yseat hub B, and withl the internal movable valve-shaft and valve,0C G" C3,opera,tcd cxternnlly, substantially as described.

' SAMUEL MCELROY.

Witnesses:

N. J. BUYERS, J onN P. RmFE.

